Follow these steps to change the font and text formatting in OneNote:

1. In OneNote, click Home > Font.
2. To choose a new font, under Font, select the font, style, and size you want.
3. To add color to your font, under Font Color, select the font color.
4. To make text bold, italics, or underlined, under Font, select the appropriate effects.
5. To add a drop shadow effect to text, under Effect, select the Shadow check box.